【多选题】【消耗次数：1】
对于端承型群桩基础，下列说法正确的是（）。
①
不必考虑群桩效应，各基桩的工作性状接近于相同地质条件下的单桩；
②
群桩基础的承载能力小于各基桩承载能力之和；
③
群桩基础的沉降等于相同地质条件和设置方法下单桩的沉降；
④
群桩基础的群桩基础的沉降大于相同地质条件和设置方法下单桩的沉降
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相关题目
【多选题】
对于摩擦型群桩基础，当桩的中心距小于6倍桩径时，下列说法正确的是（）。
①
不必考虑群桩效应；
②
群桩基础的承载能力小于各基桩承载能力之和；
③
群桩基础的沉降等于相同地质条件和设置方法下单桩的沉降；
④
群桩基础的群桩基础的沉降大于相同地质条件和设置方法下单桩的沉降
【单选题】
在竖向荷载作用下，群桩中的（ ）的相互作用导致各基桩的承载力和沉降性状与独立单桩有很大差别，这种现象称为群桩效应。
①
基桩和土体
②
基桩和承台
③
土体和承台
④
基桩、土体和承台
【单选题】
对于端承桩，桩数小于（ ）根的摩擦型桩基，和由于地层土性、使用条件等因素不宜考虑承台效应时，群桩中基桩竖向承载力特征值取单桩竖向承载力特征值。
①
3
②
4
③
5
④
6
随机题目
【单选题】
Small sailboats can eaily turn over in the water [] they are not managed carefully.
①
though
②
before
③
until
④
if
【单选题】
[] so many people want to live in cities is because they want to have fun in there.
①
Why
②
That
③
Whether
④
How
【单选题】
Which sentence is correct?
①
Afer finishing her composition, she took up the translation exercise.
②
Afer finishing her composition, the translation exercise was taken up.
【单选题】
Which sentence is correct?
①
Hurrying to the classroom, no one was there.
②
Hurrying to the classroom, she saw nobody there.
【单选题】
Ill visit you whenever I will get the chance. Identify the mistake in the sentence.
①
visit
②
whenever
③
will
④
chance
【单选题】
It is difficult for us to learn a lesson in life [] youve had that lesson.
①
until
②
after
③
when
④
since
【单选题】
She happily deposits the money she has earned teaching English in her savings account. Find any misplaced modifier in the sentence
①
happily
②
she has earned
③
in her savings account